Among the other findings in the survey, 57% of respondents said Lloyds should be stopped from using the slogan "By your side".

Edmonds said his objection to Lloyds’ campaign was its focus on the brand, which he characterised as a misrepresentation.

"These are not advertisements in the true sense of the word," he said. "Lloyds engage in propaganda – they are not advertising products or services – they are promoting their ideology."

Edmonds is behind YouTube channel Lloyds Victims, which has published a number of spoofs of Lloyds' recent ads, featuring voiceovers that paint a damning picture of the bank's practices.

One includes the line: "At Lloyds Bank, we use the noble horse to mask our character. We portray nostalgia and sentimentality. Images of honest men, women and children struggling to make something of their lives. But we are lives apart."

He has also launched online radio station Positively Noel, which plays songs in some way related to the campaign along with messages encuraging Lloyds staff to call his whistleblowing hotline.

Edmonds argued that in these circumstances, Lloyds’ messaging could influence a jury.

He has complained about the campaign to the Advertising Standard Authority, which confirmed to Campaign it had declined to investigate. But Edmonds said legal firm Keystone Law were also talking to the watchdog.

Edmonds insisted he was "not a fan of laws, rules and regulations", but said there should be "more obligations to produce ethical advertising" from all participants.

In the absence of action from the ASA, he said the next step would be to "focus on the platforms and say to broadcasters: why are you promoting this company that is the subject of so much litigation?" He would be approaching Ofcom to discuss this, he said.

Edmonds specifically called out "Get the inside out", Lloyds ad from this February that was the winner of channel 4’s Diversity in Action Award, saying it was "beyond belief" that the bank would partner with a mental health charity (Mental Health UK) after the harm he alleges Lloyds and HBOS caused to himself and other victims.

But he also said: "I feel really sorry for the staff at Lloyds. They’re at the front line and are getting the grief for a policy introduced at the highest level to hide wrongdoing. It’s not going to go away."